10081787730 has 96 divisors (see below), whose sum is σ = 28677996864. Its totient is φ = 2260911744.

The previous prime is 10081787719. The next prime is 10081787741. The reversal of 10081787730 is 3778718001.

It is an interprime number because it is at equal distance from previous prime (10081787719) and next prime (10081787741).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13209 + ... + 142611.

It is an arithmetic number, because the mean of its divisors is an integer number (298729134).

Almost surely, 2^10081787730 is an apocalyptic number.

10081787730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10081787730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14338998432).

10081787730 is an abundant number, since it is smaller than the sum of its proper divisors (18596209134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10081787730 is a wasteful number, since it uses less digits than its factorization.

10081787730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129480 (or 129473 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 42.

The spelling of 10081787730 in words is "ten billion, eighty-one million, seven hundred eighty-seven thousand, seven hundred thirty".